Improved hub-machine



UNITED STATES PATENT QEEICE.

J. B. BIPSOM, 0F EAST KENDALL, NEW YORK.

IMPROVED HUB-MACHINE.

Specification forming part of Letters Patent No. 39,675, dated August25, 1863.

To all whom t may concern.:

Be it known that I, J. B. RiPsoM, of East Kendall, in the county ofOrleans and State of New York, have invented certain new and usefulImprovements in Machines for Centering and Boring Hubs; and I doherebydeclare that the following is a full and exact descriptionthereof, reference being had to the accompanying drawings, making partof this specification. y y

Figure 1 is an elevation of my improved arrangement applied to a wheel,the whole being represented as mounted in a frame for the purpose ofcentering; Fig. 2, a plan of the same removed from the frame; Figs. 3,4, 5, 6, and 7, views of parts detached.

Like letters of reference indicate correponding parts in all the gures.

The design of my improvement is to render the centering of the hub, withthe wheel se-` cured thereto, expeditious and easily accomplished, andwhen thus arranged to bore the conical hole for the reception of the boxso truly that little or no wedging of the same is required, and it iitscentrally and accurately.

In the drawings, A represents the rim of a wheel, a its hub, and b b thespokes. A central hole is first bored through the hub, by any ordinarymeans, of sut'cient size to receive a shaft or rod, B, which serves thedouble purpose of suspending the wheel, together with its apparatus, ina frame, Fig. 1, for centering,

1 and as the operating-shaft of the cutters, as

will presently be described. One end oi' the hub rests against a block,C, which serves as the base of the apparatus. On the opposite side ofthe wheel, at a suitable distance, is situated a ring, D, or itsequivalent, Figs. 1,2, and 3, provided with three, four, or more lugs, cc c, to which are jointed adj u sting-barsE E E, diverging as theyextend downward, and having suitable notches, d d, or some equivalentform, which iit over the edge of the rim ofthe wheelto' brace againstthe same. These bars are made adjustable, so as to be adapted to wheelsof diiiercnt sizes, and the construction exhibited in Fig. 4 is aconvenient one. This consists of a base-piece, j', provided with asuitable groove, in which slides a sliding bar, g, tightened by aset-screw, lz., which passes through a longitudinal slot in the slidingbar. By this means the device may be lengthened or shortened atpleasure. Any equivalent arrangement that will secure the same resultmay be employed. Two of the bars opposite each other have sta-plest' t',Fig. 1, secured near their upper ends, into which hook adjustableconnections G G, extending downward and connecting with projections 7c7c of the block C. Thcse connections consist of three parts-the hook-rodl, elongated nut m, and screw n. The hook-rod forms a swivel-jointwith-the nut, as shown most clearly in Fig. 5, and the latter turns onthe screw, so as to easily .adjust the length of the connection. Thelower end of the screw-shank is provided with a cross-head, o, Figs. land 5, which iits into notch,p, in the end of the projection 7a, so asto retain the parts together. As the angle of the conA nection G Gnecessarily changes according `to the size of the wheel, to prevent thecrosshead being drawn out by reason of the inclination, I provide theprojections la lc with shoulders q q, against which the cross-headsrest. Byineans of this arrangement it is manifest that the wheel isfirmly clamped in place by resting against the block C on one side andby the pressure of the adjusting-bars E E on the other, and that thearrangement is equally adapted to large or small wheels. rllhe meansemployed is very simple7 convenient, not liable to disarra-n gement, andeasily adjusted. vWithin the ring D is situated an independent center,H, Figs. 2, 3, and 6, which forms the bearing of the shaft B. Thiscenter is connected with the ring by means of three, four, or morescrews, 'r r r, or equivalent, which pass through the ring and adj ustagainst the center, holding it in place irinly. By this means it isobvious that the center H may be adjusted exactly as desired, either toone side or another relatively with the ring, and consequent] y, as thewheel is connectedwwith the ring alone, and the shaft with the center,the position ofthe wheel andthe shaft (which latter is the axis on whichit turns when suspended, as iu Fig. 1) can be adjusted so that the rodwill pass directly through the center of the hub. Any test of the trueposition ot' the wheel when centered may be employed, a convenient onebeing a block, (shown by red lines at t, Fig. 1,) which just touches therim ot' the wheel. It thc wheel is true, the riin when revolved willtouch the block all the Way around. By the employment of thisarrangement I am enabled to center the wheel truly preparatory toboring, so that the latter action can vbe accomplished quickly andexactly. Just above the hub the shaft is provided with a cutter, K,Figs. 3 and 7, of sufficient length to correspond with that of thelargest-sized hub to be bored. This cutter is attached to the shaft bymeans of tighteningscrews au at opposite ends, which pass through slotsin the cutter, by which means the latter can be adjusted forward orbackward to any suitable degree. By adjustingthe edge ofthe cutter at anangle, as represented, it is apparent that it will eut a conical hole inthe hubl as it is fed down. Above this cutter is situated a small knife,L, whose position is atri ght angles 10 the first, and whose oliice isto cut the opening forming the shoulder at the end of the hub. Byadjustingthis out or in it is adapted to cutting an opening ot' agreater or less diameter. The upper end ot' the shaft is provided with ahandle, I, for operating, and is also cut With a screw-thread, s, forfeeding the cutters to the work; but this screw-thread, instead ofacting in the cutter H itself, acts in a removable nut, c, Figs. 2, 3,and (i, which fits in. a suitable bed i-n the center, andis held down-bya pivoted button or catch, u', or any convenient arrangement.Whendesirableto remove chips, or whenthe hub isbored entire, by turningthe button from over the nut thelatter is freed and the cutters may bedrawn out without impediment ot' any kind. This arrangement is veryconvenient, as by its use the cutters may be withdrawn at any timewithout the trouble and delay of turning back the shat't.

This machine is very convenient and effective for centering' and boringwheels, and saves all the trouble and difficulty otl iitting the boxesin place and wedging them that is usually experienced when the hole isnot bored true.

What I claim as my invention, and desire to secure by Letters Patent,is-

l. Clamping and sustaining the wheel in place by means of the adjustablebars E, connected with the ring D or its equivalent, the adjustableconnections G, and the block C, arranged, combined, and operatingsubstantially as herein set forth.

2. In combination with the connections G, arranged as described, and theblock C, the projections k 7c, provided with notches p p and shoulders qq, and the cross-heads o o of the screwshanks, tor the purpose ofretainingsaid connections in place at any inclination, substantially asherein specified.

3. The combination of the ring D, independent center H, andadjusting-screws r r r or equivalent, relatively to the shait B and thewheel, for the purpose ot' perfectly centering thelatter,substantiallyas-herein described.

4. In combination with the screwfshaft B, provided with cutters K L andthe center H, the removable nut o, for the purpose of easily removingthe cutters from the bore, substantially as herein set forth.

5. The special arra ngementand combination of the whole machine, asherein set forth.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

j J. B. RIPSOM.

Witnesses:

SUMNER AUs'rIN, ORoMEL H. BALL.

